tailfan — [tāl′fan΄] n. the fanlike structure at the rear of a crayfish or lobster, used for swimming backward … English World dictionary
tailfan — see caudal fan … Dictionary of invertebrate zoology
tailfan — See: caudal fan [Martin, 2005]. As a unit, telson and two pairs of uropods [Butler, T.H.]. Combination of broad, flat uropods lying alongside the telson [Brusca and Brusca, 2002]. Combined telson and uropods in many malacostracans [Brusca and… … Crustacea glossary
tailfan — tail•fan [[t]ˈteɪlˌfæn[/t]] n. zool. the fanlike posterior appendage of crayfish and lobsters, used for backward propulsion • Etymology: 1890–95 … From formal English to slang
uropod — A paired biramous appendage attached to the sixth abdominal somite in all but the true crabs and usually combining with the telson to form a tail fan [Chace and Hobbs, 1969]. An appendage of the last (6th) abdominal segment [Warner, 1977].… … Crustacea glossary
telson — ( ) [Baba, 2005]. Entire animal, right appendages omitted, dorsal view, based on Munida. [Baba, 2005] Last somite of body, bearing arms and commonly caudal furca or pair of cerci, growth zone for postcephalic somites located at its anterior edge … Crustacea glossary
caudal fan — Combination of laterally expanded uropods and telson turned backwards to form powerful swimming structure or means of steering and balancing. (Syn. tail fan, rhipidura) [Moore and McCormick, 1969]. Powerful swimming structure formed of laterally… … Crustacea glossary
Rump (croup) — The rump or croup, in the external morphology of an animal, is the portion of the posterior dorsum that is posterior to the loins and anterior to the tail. Anatomically, the rump corresponds to the sacrum. The tailhead or dock is the beginning of … Wikipedia
Rump (animal) — The rump is anterior to the animal s tail (here on a draft horse) The rump or croup, in the external morphology of an animal, is the portion of the posterior dorsum that is posterior to the loins and anterior to the tail. Anatomically, the rump… … Wikipedia
caudal fan — 1. (ARTHROPODA: Crustacea) A structure formed of laterally expanded uropods and telson that functions in swimming or steering and balancing; tailfan. 2. (ARTHROPODA: Insecta) For mosquito larvae see ventral brush … Dictionary of invertebrate zoology